Shenwei computing power
unlike all currencies, bitcoin does not rely on a specific currency institution to issue. It is generated by a large number of calculations based on a specific algorithm. Bitcoin economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions, and uses cryptography design to ensure the security of all aspects of currency circulation. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction. The design based on cryptography can make bitcoin only be transferred or paid by the real owner. This also ensures the anonymity of money ownership and circulation transactions. The biggest difference between bitcoin and other virtual currencies is that the total amount of bitcoin is very limited and it has a strong scarcity
according to the notice on preventing the financing risk of token issuance, there is no approved digital currency trading platform in China. According to China's digital currency regulatory framework, investors have the freedom to participate in digital currency transactions at their own risk
warm tips: the above information is for reference only. Before investing, it is recommended that you first understand the risks existing in the project, and understand the investors, investment institutions, chain activity and other information of the project, rather than blindly investing or mistakenly entering the capital market. Investment is risky, so we should be cautious when entering the market
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2018 and 2019 are the top years of the United States
on November 12, 2018, a new issue of the global top 500 supercomputers list was released in Dallas, the United States. The "apex" of supercomputers in the United States won the championship again. The total number of supercomputers on the list in China still ranks first, which is further increased compared with the previous issue, accounting for more than 45% of the total supercomputers on the list. China's supercomputing "Shenwei · light of Taihu Lake" and "Tianhe 2" ranked third and fourth respectively
on November 19, 2019, a new issue of the global top 500 supercomputers list came out, and the US supercomputer "apex" won the championship again, while China continued to expand its leading advantage in quantity and further narrowed its gap with the US in terms of total computing power
there is no change in the top ten of the new list. The U.S. supercomputer "zenith" has reached the top again with 1.486 billion floating-point operations per second. The second place is the U.S. supercomputer "ridge". China's supercomputer "Shenwei · light of Taihu Lake" and "tianhe-2" rank third and fourth respectively
in terms of the number on the list, there are 228 super computers in China, ranking the first in the list, 9 more than half a year ago; The United States ranked second with 117. From the perspective of total calculation power, the proportion of American Super calculation is 37.1%, and that of China is 32.3%
extended data:
vertex performance data
summit supercomputer uses IBM Power9 microprocessor and NVIDIA Volta GPU for mathematical collaborative processing. Summit's predecessor, Titan supercomputer, has more than 18000 nodes, while summit will have about 3400 nodes. Each node will have at least 500GB of coherent memory and 800gb of nonvolatile memory
The original performance ofsummit supercomputer is 150 petaflops, and the delivery performance is 200 petaflops. The performance index of taihulight supercomputer in China is 93 petaflops, and the peak performance is 124.5 petaflops. IBM's supercomputer deal is said to be worth 325 million dollars
MPE, 8gflops
CPE, 11gflops
the peak computing power of Shenwei Taihu Lake light system reaches 100pflops<
it is necessary to mention here that floating-point computing power refers to the processing power of computer floating-point computing, and the computer has a special floating-point processor FPU for floating-point processing.
home computer 2G Hz, 4G Hz refers to the dominant frequency of the computer, the dominant frequency is 4G Hz, and the floating-point processing power of the computer is about 4gflops. However, the dominant frequency is not equal to floating-point processing power
dominant frequency means the number of computer clock cycles per second. The more processing per second, the more powerful the computer is
the main frequency of CPU does not represent the processing power of CPU and the influence of instruction pipeline on the processing power of CPU
clock cycle is the basic unit of CPU operation, and a floating-point calculation may need several to dozens of clock cycles. So the relationship between the dominant frequency and floating-point processing power is obvious.
1. Supercomputers:
usually refers to the computer composed of hundreds, thousands or even more processors, which can calculate large and complex tasks that ordinary PC and server cannot complete. Supercomputer is a kind of computer with the strongest function, the fastest computing speed and the largest storage capacity. It is an important symbol of the national scientific and technological development level and comprehensive national strength
2. Server:
refers to some high-performance computers, which can provide services through the network. Compared with ordinary computer, the stability, security, performance and other aspects are higher, so the CPU, chipset, memory, disk system, network and other hardware are different from ordinary computer
the server is the node of the network, which stores and processes 80% of the data and information on the network, and plays an important role in the network. They are high-performance computers that provide various services for client computers. Their high performance mainly includes high-speed computing power, long-time reliable operation, strong external data throughput and so on
3. Desktop:
is a kind of independent and separate computer, which has no connection with other parts. Compared with notebook and netbook, the volume is larger, and the host, display and other devices are generally relatively independent, and generally need to be placed on the computer desk or special workbench. So it's called desktop
as a very popular microcomputer, most of the machines used in homes and companies are desktop computers. The performance of desktop is better than that of laptop
4. Embedded system:
that is, embedded systems
, is an application-oriented, microprocessor-based, software and hardware tailorable special-purpose computer system, which adapts to the application system's strict requirements on function, reliability, cost, volume, power consumption, etc. It is generally composed of embedded microprocessor, peripheral hardware, embedded operating system and user's application program
extended data
computer microprocessor (CPU) takes transistor as the basic component. With the continuous improvement of processor and the acceleration of update speed, computer structure and components will also change greatly. With the development of photoelectric technology, quantum technology and biotechnology, it has a great role in promoting the development of new computers
Since 1980s, ALU and control unit (CPU) have been integrated into one integrated circuit, which is called microprocessorthe working mode of this kind of computer is very intuitive: in a clock cycle, the computer first obtains instructions and data from memory, then executes instructions, stores data, and then obtains the next instruction
this process is repeated until a termination instruction is obtained. Explained by the controller, the instruction set executed by the arithmetic unit is a well-defined and very limited set of simple instructions
The traditional computer processing information is mainly characters and numbers. In fact, people are more used to pictures, words, sounds, images and other forms of multimedia information. Multimedia technology can integrate graphics, images, audio, video and text, making the object and content of information processing closer to the real world< br />2018 and 2019 are the top years of the United States
on November 12, 2018, a new issue of the global top 500 supercomputers list was released in Dallas, USA. the "apex" of supercomputers in the USA won the championship again. The total number of supercomputers on the list in China still ranks first, which is further increased than that of the previous issue, accounting for more than 45% of the total supercomputers on the list. China's supercomputing "Shenwei · light of Taihu Lake" and "Tianhe 2" ranked third and fourth respectively
on November 19, 2019, a new issue of the global top 500 supercomputers list came out, and the US supercomputer "apex" won the championship again, while China continued to expand its leading advantage in quantity and further narrowed its gap with the US in total computing power
extended data:
vertex performance data
summit supercomputer uses IBM Power9 microprocessor and NVIDIA Volta GPU for mathematical collaborative processing“ Titan, the predecessor of the summit, has more than 18000 nodes, and the summit will have about 3400 nodes. Each node has at least 500GB of consistent memory and 800gb of nonvolatile memory
The supercomputer at the summit was originally planned for 15 billion floating-point operations, but now it has delivered 20 billion floating-point operations. The performance target of China's Taihu Lake light supercomputer is 9.3 billion floating-point operations, and the peak performance is 12.45 billion floating-point operations. IBM's supercomputer deal is said to be worth 325 million dollars